Internal combustion engines

Details Internal combustion engines Internal combustion engines

1989-06-30

1990-05-22

Wolfe, Willis R.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

92193, 92201, 277216, F02F 500

Patent

active

049268112

ABSTRACT:
An internal combustion engine includes a piston mounted for reciprocating motion within a cylinder and sealed with respect thereto. The piston is connected to a crankshaft by means of a connecting rod, pivotal connections being provided between the connecting rod and crankshaft and between the connecting rod and piston. An oil ring is provided in a circumferential groove in the wall of the piston, said oil ring being split so that there is a gap in the ring when it engages the wall of the cylinder. An interconnection is provided between the connecting rod and oil ring by which tilting of the connecting rod upon upward movement of the piston will reduce the gap so that the load applied by the oil ring on the cylinder wall is reduced, the oil ring being permitted to expand against the cylinder wall upon downward movement of the piston.

REFERENCES:
patent: 3508531 (1970-04-01), Squinto et al.
patent: 4111104 (1978-09-01), Davison
patent: 4367702 (1983-01-01), Lassanske

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